Conducting strip structure and lithium plating device

Abstract

The utility model proposes a conducting strip structure and a lithium plating device, the conducting strip structure comprises a first electrical connecting strip, a second electrical connecting strip, an insulating layer and a lead, the first electrical connecting strip and the second electrical connecting strip are oppositely arranged, and the first electrical connecting strip and the second electrical connecting strip are both provided with through holes; the insulating layer is arranged between the first electric connecting sheet and the second electric connecting sheet; the first electric connecting piece and the second electric connecting piece are both connected with wires, and the wires penetrate through the through holes to be wound and fixed. According to the application, the first electric connecting sheet and the second electric connecting sheet are arranged, are connected at intervals through the insulating layer and are connected with the wire, so that when the buckle electric clamp is connected, the buckle electric clamp clamps the first electric connecting sheet and the second electric connecting sheet, the clamping connection area is large, and the problem of loosening can be effectively avoided; therefore, the application stability can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery preparation, in particular to a conductive sheet structure and a lithium plating device. Background Art

[0002] During the development of lithium-ion batteries, three electrodes are often used to test the lithium potential of the positive and negative electrodes during different charging rates. This allows for quantitative evaluation of the battery's charge rate performance and provides data support for developing reasonable charging protocols. During the three-electrode fabrication process, lithium is plated onto the positive and negative electrodes of the lithium-ion battery using a low current in the μA range to create a reference electrode.

[0003] The invention patent, with authorization publication number CN112430833B, discloses a method for metal lithium plating used as a reference electrode in a three-electrode lithium-ion battery, belonging to the field of three-electrode lithium-ion batteries. The method comprises the following steps: using the battery positive electrode as the positive electrode for lithium plating and the metal electrode as the negative electrode for lithium plating, first subjecting the metal electrode to lithium plating by charging, then subjecting the metal electrode to lithium dissolution by discharging, wherein the charging capacity of the charging lithium plating is greater than the discharge capacity of the discharging lithium dissolution; and alternating the charging and discharging processes on the metal electrode until a predetermined total charging and discharging time is reached.

[0004] As described above, a technical solution for lithium plating using a small current is disclosed. In the existing lithium plating process, the head ends of two wires are connected to two alligator clips, which are then clamped to the positive and negative electrodes of the battery. The tail ends of the wires are separated by insulating materials and clamped with clips before the lithium plating operation is performed.

[0005] In the existing operation method, due to the small size of the wire, there is a problem that the connection with the clip is not tight enough, and the connection is prone to loosening, resulting in interruption of the lithium plating process and affecting the efficiency and quality of lithium plating. Utility Model Content

[0006] In view of this, the present invention proposes a conductive sheet structure and a lithium plating device with a stable connection structure to solve the problem of stable connection structure in existing lithium plating devices.

[0007] The technical solution of the present utility model is achieved as follows:

[0008] In one aspect, the present invention provides a conductive sheet structure, comprising a first electrical connection sheet, a second electrical connection sheet, an insulating layer and a wire, wherein:

[0009] The first electrical connection sheet and the second electrical connection sheet are arranged opposite to each other, and both the first electrical connection sheet and the second electrical connection sheet are provided with through holes;

[0010] The insulating layer is arranged between the first electrical connection sheet and the second electrical connection sheet;

[0011] The first electrical connection piece and the second electrical connection piece are both connected with conductive wires, which pass through the through holes and are wound and fixed.

[0012] Based on the above technical solution, preferably, grooves are provided on the opposite surfaces of the first electrical connection sheet and the second electrical connection sheet; and the wires are routed inside the grooves.

[0013] On the basis of the above technical solution, preferably, a filling block is further included, and the filling block is arranged in the groove to fill the groove and fix the wire.

[0014] Based on the above technical solution, preferably, the filling block is a curing glue.

[0015] On the basis of the above technical solution, preferably, the first electrical connection sheet and the second electrical connection sheet are aluminum sheets.

[0016] On the basis of the above technical solution, preferably, the length of the first electrical connection piece and the second electrical connection piece is 50 mm, the width is 12 mm, and the thickness is 1-3 mm.

[0017] On the basis of the above technical solution, preferably, the diameter of the through hole is 8 mm, and the distance between the through hole and the short side of the first electrical connection piece or the short side of the second electrical connection piece is 8 mm.

[0018] On the basis of the above technical solution, preferably, the insulating layer is an insulating tape.

[0019] On the basis of the above technical solution, preferably, the wire is a copper wire.

[0020] On the one hand, the utility model provides a lithium plating device, comprising the above-mentioned conductive sheet structure.

[0021] The conductive sheet structure and lithium plating device of the present invention have the following beneficial effects compared with the prior art:

[0022] (1) By providing a first electrical connection piece and a second electrical connection piece, which are spaced apart and connected by an insulating layer and are connected to a wire, when the buckle clamp is connected, the buckle clamp is clamped to the first electrical connection piece and the second electrical connection piece, and the clamping connection area is large, which can effectively avoid the problem of loosening, thereby improving the stability during application;

[0023] (2) By providing through holes and grooves on the first electrical connection sheet and the second electrical connection sheet, the through holes facilitate the insertion of connecting wires, and the grooves accommodate the wires on opposite sides of the two electrical connection sheets, thereby preventing the wires from affecting the fixation of the insulating layer and ensuring that the two electrical connection sheets are tightly fitted;

[0024] (3) By setting a filling block in the groove and using a curing glue for the filling block, the connection stability between the electrical connection piece and the wire can be improved. At the same time, since the filling block fills the groove, the surface of the electrical connection piece is relatively flat, which is convenient for bonding the insulating layer to further ensure the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A three-dimensional diagram of the conductive sheet structure of the present invention;

[0027] Figure 2 An exploded view of the conductive sheet structure of the present invention;

[0028] Figure 3 A top view of the conductive sheet structure of the present invention;

[0029] Figure 4 For the utility model Figure 3 Stage diagram of the middle AA section;

[0030] Figure 5 A structural diagram of the through holes and grooves of the conductive sheet structure of the present invention is provided;

[0031] In the figure: 1, first electrical connection piece; 2, second electrical connection piece; 3, insulation layer; 4, wire; 5, filling block; 100, through hole; 200, groove; DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 5 As shown, the conductive sheet structure of the present invention includes a first electrical connection sheet 1, a second electrical connection sheet 2, an insulating layer 3, a wire 4 and a filling block 5;

[0034] The lithium plating device of the present invention includes the above-mentioned conductive sheet structure.

[0035] like Figures 1 to 5 As shown, the first electrical connection sheet 1 and the second electrical connection sheet 2 are arranged opposite to each other, and a through hole 100 is opened on each of the first electrical connection sheet 1 and the second electrical connection sheet 2; the insulating layer 3 is arranged between the first electrical connection sheet 1 and the second electrical connection sheet 2; the first electrical connection sheet 1 and the second electrical connection sheet 2 are connected to a wire 4, and the wire 4 passes through the through hole 100 to be wound and fixed;

[0036] As in the above structure, the first electrical connection piece 1 and the second electrical connection piece 2 are each connected to a wire 4, the wire 4 is wound and fixed through the through hole 100, and the first electrical connection piece 1 and the second electrical connection piece 2 are separated and insulated by an insulating layer 3. In this way, when the buckle clamp is connected, the buckle clamp clamps the two electrical connection pieces, and it has a larger clamping area, thereby ensuring stable clamping to ensure the reliability of the operation process.

[0037] like Figure 5 As shown, grooves 200 are provided on the opposite surfaces of the first electrical connection sheet 1 and the second electrical connection sheet 2; the wires 4 are arranged inside the grooves 200;

[0038] As shown in the above structure, since the wire 4 is wrapped around the first electrical connection sheet 1 and the second electrical connection sheet 2, after the groove 200 is formed on the first electrical connection sheet 1 and the second electrical connection sheet 2, the wire 4 located between the two electrical connection sheets can be arranged in the groove 200, thereby avoiding spacing interference due to the presence of the wire 4 when the two electrical connection sheets are attached, thereby ensuring that the two electrical connection sheets can be tightly attached through the insulating layer 3, thereby ensuring the stability of the application.

[0039] like Figure 4 As shown, the filling block 5 is disposed in the groove 200 to fill the groove 200 and fix the wire 4;

[0040] Specifically, the filling block 5 is made of curing glue;

[0041] As in the above structure, by arranging a filling block 5 in the groove 200, and the filling block 5 uses a curing glue, the connection stability between the electrical connection piece and the wire 4 can be improved. At the same time, since the filling block 5 fills the groove 200, the surface of the electrical connection piece is relatively flat, which is convenient for bonding the insulating layer 3 to ensure the stability of the connection.

[0042] Specifically, the first electrical connection sheet 1 and the second electrical connection sheet 2 are aluminum sheets; and the length of the first electrical connection sheet 1 and the second electrical connection sheet 2 is 50 mm, the width is 12 mm, and the thickness is 1 to 3 mm;

[0043] As described above, in this conductive sheet structure, the first electrical connection sheet 1 and the second electrical connection sheet 2 adopt a rectangular sheet structure;

[0044] The diameter of the through hole 100 is 8 mm, and the distance between the through hole 100 and the short side of the first electrical connection sheet 1 or the short side of the second electrical connection sheet 2 is 8 mm.

[0045] As in the above structure, the through hole 100 is opened at the end of the electrical connection piece, so that the wire 4 is led out through one end of the electrical connection piece, and the other end of the electrical connection piece is connected to the buckle clip.

[0046] Specifically, the insulating layer 3 is an insulating tape; thus, the first electrical connection sheet 1 and the second electrical connection sheet 2 are bonded together by the insulating tape;

[0047] When laying out the insulating layer 3 , a double-sided tape may be used, and one piece may be placed on each of the two electrical connection sheets, and then the two pieces may be bonded and fixed to each other.

[0048] Specifically, the wire 4 is a copper wire.

[0049] Specific implementation steps:

[0050] First, a wire 4 is connected to each of the first electrical connection sheet 1 and the second electrical connection sheet 2. Then, the groove 200 is filled with a filling block 5. Then, an insulating layer 3 is provided on the first electrical connection sheet 1 and the second electrical connection sheet 2. The insulating layer 3 is used to bond and fix the first electrical connection sheet 1 and the second electrical connection sheet 2 to each other, thereby achieving insulation.

[0051] Then connect the other ends of the two wires 4 to an alligator clip each, one to the positive terminal of the battery and the other to the negative terminal of the battery;

[0052] Finally, the buckle clip is connected to the first electrical connection piece 1 and the second electrical connection piece 2, and the lithium plating process can be carried out.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A conductive sheet structure, characterized in that: It comprises a first electrical connection sheet (1), a second electrical connection sheet (2), an insulating layer (3) and a wire (4), wherein: The first electrical connection piece (1) and the second electrical connection piece (2) are arranged opposite to each other, and both the first electrical connection piece (1) and the second electrical connection piece (2) are provided with a through hole (100); The insulating layer (3) is arranged between the first electrical connection piece (1) and the second electrical connection piece (2); The first electrical connection piece (1) and the second electrical connection piece (2) are both connected to the conductive wire (4), and the conductive wire (4) passes through the through hole (100) to be wound and fixed.

2. The conductive sheet structure according to claim 1, wherein: Grooves (200) are provided on the opposite surfaces of the first electrical connection piece (1) and the second electrical connection piece (2); The conductive wire (4) is laid inside the groove (200).

3. The conductive sheet structure according to claim 2, wherein: It also includes a filling block (5), which is arranged in the groove (200) to fill the groove (200) and fix the wire (4).

4. The conductive sheet structure according to claim 3, wherein: The filling block (5) is a curing glue.

5. The conductive sheet structure according to any one of claims 1 to 4, wherein: The first electrical connection sheet (1) and the second electrical connection sheet (2) are aluminum sheets.

6. The conductive sheet structure according to any one of claims 1 to 4, wherein: The length of the first electrical connection piece (1) and the second electrical connection piece (2) is 50 mm, the width is 12 mm, and the thickness is 1 to 3 mm.

7. The conductive sheet structure according to claim 6, wherein: The diameter of the through hole (100) is 8 mm, and the distance between the through hole (100) and the short side of the first electrical connection sheet (1) or the short side of the second electrical connection sheet (2) is 8 mm.

8. The conductive sheet structure according to any one of claims 1 to 4, wherein: The insulating layer (3) is an insulating tape.

9. The conductive sheet structure according to any one of claims 1 to 4, wherein: The conductor (4) is a copper conductor.

10. A lithium plating device, characterized in that: The conductive sheet structure comprises the conductive sheet structure according to any one of claims 1 to 9.

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